Author
Ticul Alvarez
1935-2001
Ticul Alvarez (1935-2001) is a public-domain author available on Rivro. Read free books, explore subjects, and discover related classics.
Books by Ticul Alvarez
The Recent Mammals of Tamaulipas, México
"The Recent Mammals of Tamaulipas, México" by Ticul Alvarez is a scientific publication written in the early 1960s. The book provides a comprehensive account of the mammalian fauna of Tamaulipas, detailing the species found in the region and their relationships to the geography and climate of the area. It is likely aimed at researchers, biologists, or anyone interested in the biodiversity of this part of Mexico. The opening of the book introduces the geographical and ecological context of Tamaulipas, a northeastern state in Mexico, outlining its elevation ranges and diverse habitats. The author elaborates on the various physiographic regions within Tamaulipas, such as the Gulf Coastal Plain, Sierra Madre Oriental, and Central Plateau, each contributing to the rich biodiversity present. Alvarez shares his personal experiences in the field and provides insights into the history of mammalogy in the region, indicating the importance of past explorations and studied specimens that contribute to this report. The introduction sets the stage for a detailed analysis of 146 species of mammals recorded from the state, which will be explored in greater depth throughout the publication.
A New Subspecies of Ground Squirrel (Spermophilus spilosoma) from Tamaulipas, Mexico
"A New Subspecies of Ground Squirrel (Spermophilus spilosoma) from Tamaulipas, Mexico" by Ticul Alvarez is a scientific publication produced by the University of Kansas in the early 1960s. This study focuses on the identification and description of a newly recognized subspecies of the spotted ground squirrel found in Tamaulipas, Mexico. The book serves as a crucial addition to the existing taxonomy of ground squirrels in North America. In this publication, Alvarez details his findings based on specimens collected from the coastal plain of eastern Tamaulipas, marking the first record of this subspecies, named "Spermophilus spilosoma oricolus". The text includes a comprehensive diagnosis of the new subspecies, distinguishing it from related forms based on anatomical measurements and physical characteristics such as color and cranial dimensions. Additionally, the work discusses the geographic dispersion of the species, suggesting that it reached the mainland from the barrier beach, underscoring its isolated population in the region. The publication is a precise contribution to the field of mammalogy, enriching the understanding of ground squirrel diversity and distribution.
Taxonomic Status of Some Mice of The Peromyscus boylii Group in Eastern Mexico, With Description of a New Subspecies
"Taxonomic Status of Some Mice of The Peromyscus boylii Group in Eastern Mexico, With Description of a New Subspecies" by Ticul Alvarez is a scientific publication produced in the early 20th century, specifically in the early 1960s. This work primarily focuses on the taxonomic classification of certain mouse species within the Peromyscus boylii group in Eastern Mexico, analyzing their differences, subspecies, and geographical distribution. In the publication, Alvarez reviews previous classifications and provides new insights into the differentiation between various species and subspecies of the Peromyscus boylii group, notably distinguishing traits among species like Peromyscus aztecus and Peromyscus boylii levipes. The author examines specimens collected from specific regions such as Veracruz, Puebla, and Nuevo León, offering detailed descriptions of new subspecies, particularly the small-sized Peromyscus b. ambiguus. This comprehensive analysis helps clarify the taxonomic status of these mice, emphasizing their unique morphological characteristics and contributing to the understanding of ecological diversity in this region of Mexico.
A New Species of Wood Rat (Neotoma) from Northeastern Mexico
"A New Subspecies of Wood Rat (Neotoma) from Northeastern Mexico" by Ticul Alvarez is a scientific publication published in the early 1960s. This work focuses on the identification and description of a new subspecies of wood rat, specifically the White-throated woodrat, from northeastern Mexico, contributing valuable insights to the field of mammalogy and biogeography. In this publication, Alvarez presents a detailed analysis of the newly identified subspecies, named "Neotoma albigula subsolana", based on morphological measurements and comparisons with related subspecies. The study discusses the geographic distribution of these woodrats in the Sierra Madre Oriental, highlighting their distinguishing features such as size, coloration, and skull structure. By examining specimens collected from various locations in Tamaulipas, Nuevo León, and Coahuila, Alvarez provides a comprehensive overview of the subspecies' physical characteristics and ecological interrelations, enriching the scientific understanding of woodrat taxonomy in Mexico.